Privacy Policy, MPTree

Last updated: 18 October 2026

Who this covers

This policy applies to the MPTree apps for Android and Windows and the website at mp-tree.net. MPTree is an offline music player built by Verkuijl. There is no company behind it and no server that stores your information, with one small exception for Pro bought on Windows, written out under MPTree Pro.

What the app collects

Nothing reaches us. The app has no analytics and no tracking of any kind, and it never sends us your files, your playlists, or what you listen to. The one ad there is, on Android, plays only when you ask for it, and is described under Ads. We have no way of knowing who you are or what you play, because none of that information is ever sent to us. The one request the app makes on its own is the update check described under Internet access below.

If you sign in to an MPTree account, which is optional, your library is saved in your own Google Drive and your songs go to your own other devices. That is all written out below.

That is the app. The website is a separate thing with its own answer, and it is written out under The website below.

Access to your music files

To play your music, MPTree asks Android for permission to read the audio files on your device (the Read audio or Read storage permission). This access is used only to find and play your music on the device itself. Your files are never sent to us or shared with anyone. The one time they leave the device is when you sign in to an MPTree account yourself: then they go to your own other devices. If you deny this permission, MPTree simply cannot show your library.

On Windows there is no such permission to ask for. MPTree reads the audio files in your own user folder, or in the one folder you pick in Settings, and nothing else. Songs that arrive from your other devices are saved in Music\MPTree.

Internet access

MPTree plays your local files and does not need the internet to work. It never streams, and never sends us your listening activity, your music or anything about it.

There is one background request, and only in the Windows app downloaded from this website (and in Android copies that were downloaded here before MPTree moved to Google Play): about once a day, when you open the app, it fetches a small file from mp-tree.net to see whether a newer version has been released. That request carries nothing except the ask itself. Like any web request, including loading this page, it does reach the server with your device's IP address. Nothing is stored against you, and nothing links one check to the next. The Google Play version and the Microsoft Store version do not make it at all, because their stores keep them up to date, and neither does the demo you can try on this site.

MPTree does not fetch lyrics. Tapping Search online on a song opens your own browser on a web search for it, the same as any other outward link: from that point you are in your browser, not in MPTree, and what happens there is between you and the site you land on. Lyrics you paste into the app stay on your device, and in your own Google Drive if you sign in to an MPTree account.

Apart from that, MPTree opens a connection only when you do something that needs one: tapping an outward link, which opens in your own browser, buying or restoring Pro, which goes through Google Play, or signing in to an MPTree account, which talks to your own Google Drive and your own other devices.

MPTree Pro

MPTree Pro is an optional one-time purchase, sold through Google Play. Google Play handles the payment. We never see your card or bank details, your name or your email address; Google Play only tells the app whether your Google account owns Pro, and the app remembers that answer on your device. Everything you set up with Pro, like colours, the record and the header card, stays on your device too, or with your account if you sign in.

To buy Pro, you first sign in to an MPTree account. The account then notes that it has Pro, with which device bought it, so your other devices signed in to that account have Pro too, even if they use another Google Play account. That note sits in your own Google Drive with the rest of the account. A day of Pro for an ad needs no account.

So that one purchase goes to one account, Google Play keeps a code with your purchase that stands for your MPTree account. It is made from your email address in a way that cannot be turned back into it, so Google Play does not get your email address from MPTree, and we never see the code at all.

Buying Pro on Windows. There is no Google Play on Windows, so there you pay in a web checkout, in your own browser. The seller is Lemon Squeezy, who take the payment and handle the tax; your name, email and payment details go to them and never to us. So that the purchase reaches your MPTree account, the app hands the checkout the same kind of code: made from your email address in a way that cannot be turned back into it. After you pay, Lemon Squeezy passes that code and the order number to mp-tree.net, which keeps the two and nothing else. The Windows app asks mp-tree.net whether your code has Pro, when you buy and when it is opened. This is the one thing of yours that mp-tree.net stores. A refund removes it.

On Android, Pro can also be had for a day by watching one ad, as often as you like (see Ads). That day is counted on your device and nowhere else: no account, no payment details, and nothing is charged when it ends. On Windows, Pro can be tried for free for one week, counted on your computer in the same way.

The Android app shows an ad only when you choose to watch one, on the MPTree Pro page, for a day of Pro. It never shows one by itself, and the Windows app shows none.

The ad comes from Google AdMob. While it loads and plays, Google's ad service on your device talks to Google directly, not through us. Google receives what any ad needs: your device's advertising ID, its IP address, its model and system version, and whether the ad was watched. It does not get your music, your playlists, your account or anything else from MPTree. How Google uses this is in Google's own explanation. We see only totals in AdMob, such as how many ads were shown, never who watched them.

In the European Economic Area, the United Kingdom and Switzerland, Google asks for your consent the first time you ask for an ad, and you can change your answer later under Settings, Privacy choices for ads. You can also reset or delete your advertising ID in your phone's own settings.

The MPTree account

With Pro you can sign in with your Google account, on up to three devices. This is optional: MPTree works the same without it.

What is saved, and where. Your playlists, likes, play counts, the names, artists, lyrics and covers you set, the bin, cut tracks, which device deleted which song, and your settings are saved in your own Google Drive, in its app folder, so all your devices show the same. So is the list of your devices: the name each one has, and a number that tells them apart. That is a hidden folder that only MPTree can open; it cannot see the rest of your Drive, and your other files cannot see it. It sits in your Drive, under your Google account, not with us. We never receive a copy. To sign in, MPTree asks Google for access to that one folder and nothing else. It reads your name and email address from Google only to show you which account you are signed in with, on your device.

On Windows, signing in opens Google's own page in your browser. What lets MPTree stay signed in afterwards is kept on that computer, in the Windows Credential Manager, and is removed when you sign out.

Your songs. The songs themselves are not saved in your account. They go from one of your devices straight to your other devices, so each one has them all. To find each other, the devices leave a short note in the same app folder, with a list of the songs each device has (their size, file name, title and artist), and ask a Google server (a so-called STUN server) which internet address they have, the way video calls do. When a device that needs a song is not open, the device that has it can leave the song in your Drive's app folder instead; the other device deletes it from there as soon as it has it. So a song can sit in your own Drive for a while, and it counts towards your Drive's storage while it does. Songs only move on wifi unless you allow mobile data.

Stopping. Signing out stops syncing on that device. What is on it stays, unless you choose to delete the songs that came from your other devices. To delete what the account holds, open your Google Drive on the web, go to Settings, then Manage apps, and choose Delete hidden app data next to MPTree. You can also take away MPTree's access at myaccount.google.com, under Security.

Deleting your MPTree account

Your MPTree account is only the MPTree folder in your own Google Drive. You delete it yourself, and it is gone at once. We hold nothing of it, with one exception: if you bought Pro on Windows, mp-tree.net keeps the code for your account and the order number (see MPTree Pro above). Write to the address at the bottom of this page and we remove those too.

In MPTree, open Settings, then Account & sync, and sign out on each of your devices.
On a computer, open drive.google.com, click the gear, then Settings, then Manage apps.
Find MPTree, click Options, then Delete hidden app data.
If you like, also take away MPTree's access at myaccount.google.com/connections.

What is deleted: everything the account holds, the shared library (playlists, likes, play counts, names, lyrics, covers, the bin, settings), the list of your devices, the song lists, the note that the account has Pro, and any songs still waiting in the folder. Nothing is kept anywhere. Pro you bought stays yours: Google Play keeps it. What stays: the songs and settings on each of your devices, because they are yours and on your device. Delete MPTree from a device to remove those too.

Backups

MPTree can save a backup of your playlists, artwork, and music to a single file. That file is written to a location you choose on your own device or storage. It is never sent to us or to any third party. You are in full control of where it goes and who can see it.

Android itself can keep a copy of MPTree's playlists, covers, likes and settings in your phone's own Google backup, if you have that backup switched on. That is how they come back when you install MPTree again or move to a new phone. It is part of your phone's backup, kept in your own Google account; it never comes to us. Your songs are not in it. You can switch it off in your phone's backup settings.

The website

The mp-tree.net website is a set of static pages hosted on Cloudflare Pages. It sets no advertising or tracking cookies. There is no form anywhere on it, so there is nothing here that can submit your text to a server. Reaching us means sending an email yourself, from your own mail app.

Cloudflare, as the host, keeps a running count of the requests it serves for this site: how many pages were loaded, roughly which country they were loaded from, and which browser asked. We look at those counts to see whether anyone is finding the app. They are totals rather than people. There is no tracking script on any page here, nothing is stored in your browser, no profile is built, and none of it is sold or handed on. If you loaded this page, you are one anonymous tick in a daily total, and that is the whole of it.

Third parties

Two, each only when you choose it: Google AdMob, if you watch an ad for a day of Pro on Android (see Ads), and Lemon Squeezy, if you buy Pro on Windows, who run that checkout (see MPTree Pro). Otherwise there are none. The site used to carry a comment section run by Cusdis, which stored what you typed on their servers rather than ours. That service went down and has been removed, along with everything it loaded. No page here now fetches anything from another company, and nothing you do on this site is sent anywhere except to the server handing you the page.

Children

MPTree is a general audience music player and is not directed at children. Because it sends us nothing that says who you are, we have nothing that says so about children either.

Changes to this policy

This page describes MPTree as it works today. If a future version adds something that handles your data differently, this policy will be updated before that version ships, with a new date at the top, and it will say plainly what changed.

18 October 2026: on Android, the free week is replaced by an ad: watch one on the Pro page, and Pro is on for a day. A new part, Ads, says what Google receives then. Windows keeps the free week.

6 October 2026: Deleting your MPTree account now says what mp-tree.net keeps after a purchase on Windows, and how to have it removed.

1 October 2026: the short version and What the app collects now say plainly that signing in sends your library to your own Google Drive, and the account part names the list of your devices. A new part, Deleting your MPTree account, gives the steps.

1 October 2026, later: buying Pro now starts with signing in to an MPTree account, and Pro comes with that account, so your other devices have it too. The account notes that it has Pro, and Google Play keeps a code for that account with the purchase.

1 October 2026, evening: Backups now mentions that your phone's own Google backup can keep MPTree's playlists and settings. MPTree always allowed that; the policy did not say so.

30 September 2026: added the MPTree account, which saves your library in your own Google Drive and moves your songs between your own devices. We still receive nothing.

29 September 2026: added MPTree Pro, bought through Google Play, and its free week, which is counted on your phone. MPTree still collects nothing.

Contact

Questions about privacy, or anything else? Email [email protected].